A Qualitative Meta-Analysis Reveals Consistent Effects of Atrazine on Freshwater Fish and Amphibians
@article{Rohr2010AQM, title={A Qualitative Meta-Analysis Reveals Consistent Effects of Atrazine on Freshwater Fish and Amphibians}, author={Jason R. Rohr and Krista A. McCoy}, journal={Environmental Health Perspectives}, year={2010}, volume={118}, pages={20 - 32} }
Objective The biological effects of the herbicide atrazine on freshwater vertebrates are highly controversial. In an effort to resolve the controversy, we conducted a qualitative meta-analysis on the effects of ecologically relevant atrazine concentrations on amphibian and fish survival, behavior, metamorphic traits, infections, and immune, endocrine, and reproductive systems. Data sources We used published, peer-reviewed research and applied strict quality criteria for inclusion of studies in…
278 Citations
Atrazine and amphibians: Data re-analysis and a summary of the controversy
- BiologybioRxiv
- 2017
Data is re-analyzed from authors that were funded by Syngenta Crop Protection, Inc., and it is shown that increasing concentrations of atrazine applied to outdoor mesocosms increases the population growth rate of snails that can transmit trematode parasites to amphibians.
Effects of Atrazine in Fish, Amphibians, and Reptiles: An Analysis Based on Quantitative Weight of Evidence
- Environmental ScienceCritical reviews in toxicology
- 2014
The WoE showed that atrazine might affect biomarker-type responses, such as expression of genes and/or associated proteins, concentrations of hormones, and biochemical processes, at concentrations sometimes found in the environment, but these effects were not translated to adverse outcomes in terms of apical endpoints.
Contaminant-induced behavioural changes in amphibians: A meta-analysis.
- Environmental Science, BiologyThe Science of the total environment
- 2019
The effects of the herbicide atrazine on freshwater snails
- Environmental Science, BiologyEcotoxicology
- 2015
The results indicate that, in the absence of other possible stressors, the direct effects of environmentally relevant atrazine concentrations may not be realized at the snail population level.
A meta-analysis of the effects of pesticides and fertilizers on survival and growth of amphibians.
- Environmental ScienceThe Science of the total environment
- 2013
Effects of atrazine on endocrinology and physiology in juvenile barramundi, Lates calcarifer (Bloch)
- Biology, Environmental ScienceEnvironmental toxicology and chemistry
- 2014
The lack of effect on brain cytochrome P19B (CYP19B) expression levels does not support the hypothesis that atrazine has an indirect estrogenic effect via modulation of aromatase expression, and the authors recommend that laboratory studies should focus more on examining the effects of commercial pesticide formulations that contain additional ingredients that have been found to be disruptive to endocrine function.
Do hormone‐modulating chemicals impact on reproduction and development of wild amphibians?
- Environmental Science, BiologyBiological reviews of the Cambridge Philosophical Society
- 2015
Overall, the published data available suggest that some health effects observed in wild anuran populations, most notably intersex, likely have a chemical aetiology; however they derive only from very few anuran species and for a few pesticides at field sites in the USA.
Assessing multiple endpoints of atrazine ingestion on gravid northern watersnakes (Nerodia sipedon) and their offspring
- BiologyEnvironmental toxicology
- 2014
It is shown that atrazine ingestion can disrupt estradiol production in mothers, increase the likelihood of mortality from infection, alter clutch sex ratio, cause a higher proportion of stillborn offspring, and affect scale symmetry.
Will climate change reduce the effects of a pesticide on amphibians?: partitioning effects on exposure and susceptibility to contaminants
- Environmental Science
- 2011
This work isolated the effects of a temperature gradient on susceptibility (toxicity at a controlled exposure duration) and exposure of the streamside salamander, Ambystoma barbouri, to the herbicide atrazine to highlight the importance of explicitly considering how climate change will affect both exposure and toxicity to contaminants to accurately assess risk.
References
SHOWING 1-10 OF 210 REFERENCES
Differential metamorphosis alters the endocrine response in anuran larvae exposed to T3 and atrazine.
- BiologyAquatic toxicology
- 2005
Effects of atrazine on embryos, larvae, and adults of anuran amphibians
- Biology, Environmental ScienceEnvironmental toxicology and chemistry
- 2001
Atrazine concentrations found to be deleterious to amphibian embryos and adults are considerably higher than concentrations currently found in surface waters in North America, therefore, direct toxicity of atrazine is probably not a significant factor in recent amphibian declines.
Aquatic herbicide exposure increases salamander desiccation risk eight months later in a terrestrial environment
- Environmental ScienceEnvironmental toxicology and chemistry
- 2005
The results are consistent with the hypothesis that adverse climatic conditions and contaminants can interact to harm post-metamorphic amphibians; however, they suggest that these two stressors need not be experienced simultaneously to do so and emphasize the importance of considering both latent and cumulative effects of temporally linked stressors in ecotoxicology.
Agrochemicals increase trematode infections in a declining amphibian species
- BiologyNature
- 2008
It is shown that the widely used herbicide, atrazine, was the best predictor of the abundance of larval trematodes in the declining northern leopard frog Rana pipiens, and analysis of field data supported a causal mechanism whereby both agrochemicals increase exposure and susceptibility to larval Trematodes by augmenting snail intermediate hosts and suppressing amphibian immunity.
MULTIPLE STRESSORS AND SALAMANDERS: EFFECTS OF AN HERBICIDE, FOOD LIMITATION, AND HYDROPERIOD
- Environmental Science
- 2004
In general, food and atrazine levels did not interact statistically, andatrazine affected dependent variables in a standard, dose-dependent manner.
Effects of sublethal concentrations of atrazine and nitrate on metamorphosis of the African clawed frog
- Medicine, BiologyEnvironmental toxicology and chemistry
- 2003
The results indicate that environmentally realistic concentrations of atrazine exert a negative impact on amphibian metamorphosis and suggests that mixtures of agricultural chemicals, even if sublethal, may exert negative and not necessarily consistent mixture effects.
Interactions of an insecticide, herbicide, and natural stressors in amphibian community mesocosms
- Environmental Science
- 2003
The objectives of this study were to determine the effects that post-application concentrations of an insecticide (carbaryl) and an herbicide (atrazine) have on body mass, development, and survival of two anuran species and two caudate species reared in outdoor cattle tank mesocosms.
Pesticide Mixtures, Endocrine Disruption, and Amphibian Declines: Are We Underestimating the Impact?
- Biology, Environmental ScienceEnvironmental health perspectives
- 2006
Estimating ecological risk and the impact of pesticides on amphibians using studies that examine only single pesticides at high concentrations may lead to gross underestimations of the role of pesticides in amphibian declines.
Atrazine increases ranavirus susceptibility in the tiger salamander, Ambystoma tigrinum.
- BiologyEcological applications : a publication of the Ecological Society of America
- 2006
It is suggested that ecologically relevant concentrations of atrazine and nitrates have immunosuppressive effects, and atrazines may contribute to ATV epizootics, raising concerns about the influence of contaminants on diseases in general.
Effect of atrazine on metamorphosis and sexual differentiation in Xenopus laevis.
- BiologyAquatic toxicology
- 2008